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Steel tube truss arch bridge

A technology for steel pipe trusses and arch bridges, applied in the field of bridge structures, can solve the problems of increased steel consumption, high requirements for construction machinery, and difficult construction, and achieves the effects of low steel consumption, low construction machinery requirements, and project cost savings.

Inactive Publication Date: 2014-02-19
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The spanning capacity of steel arch bridges is greater than that of steel truss girders. However, with the increase of span, the vector height of steel arch bridges also gradually increases, and the index of steel consumption is also gradually increasing. The requirements for construction machinery are also getting higher and higher, and the construction is difficult and costly. high

Method used

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  • Steel tube truss arch bridge
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Experimental program
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Embodiment

[0019] Embodiment: The present invention includes two hollow round steel pipe arch ribs 1, hollow round steel pipe tie beams 2 and cross braces 5, the cross braces 5 are welded between the two hollow round steel pipe arch ribs 1, and the hollow round steel pipe tie beams 5 The beam 2 is welded with a crossbeam 6 and also includes an arch foot connection device 4. The two ends of the hollow circular steel pipe arch rib 1 and the two ends of the hollow circular steel pipe tie beam 2 form a rigid knot through the arch foot connecting plate. A truss type web member 3 is connected between the belly of the steel pipe arch rib 1 and the hollow circular steel pipe tie beam 2 . A steel bridge deck 9 is continuously laid vertically and horizontally across the entire bridge above the crossbeam 6, and the steel bridge deck 9 is welded to the tie beam 2 longitudinally, and an I-shaped rib beam 7 is vertically arranged between the crossbeam 6 and the steel bridge deck 9. A U-shaped rib beam...

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Abstract

The invention discloses a steel tube truss arch bridge which comprises two hollow round steel tube arch ribs, a hollow round steel tube straining beam and cross arms. The cross arms are connected between the two hollow round steel tube arch ribs in a welded mode, and a cross beam is welded onto the hollow round steel tube straining beam. The steel tube truss arch bridge further comprises an arch foot connecting device, rigid connection is formed between the two ends of each hollow round steel tube arch rib and the two ends of the hollow round steel tube straining beam through arch foot connecting plates, and truss type web members are connected between the abdomens of the hollow round steel tube arch ribs and the hollow round steel tube straining beam. According to the steel tube truss arch bridge, finished steel tubes manufactured in a factory are adopted, steel tube sections are welded at the construction site, the number of the sections is small, the welding quality is easy to guarantee, construction is convenient, and the construction period is short.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a steel pipe truss arch bridge. Background technique [0002] Steel is a homogeneous material with high tensile, compressive and shear strengths. Generally, steel components can be designed to be lighter, so the steel structure has a lighter weight. Currently, steel bridges have a greater spanning capacity than bridges built with other materials using the same bridge structural system. For medium-span bridges, steel bridges have strong competitiveness, while for super-long-span bridges, steel bridges are none other than steel bridges. [0003] According to the classification of mechanical systems, steel bridges have three basic systems: beams, arches, and cables. The main load-bearing structure of the steel girder bridge is the main girder, which is designed to control the bending moment of the main girder. The span of the girder bridge is smaller than that of the arc...

Claims

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Application Information

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IPC IPC(8): E01D12/00
Inventor 罗世东刘振标印涛马广任征夏正春
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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